N-hydroxy substd amino-s-triazines - as herbicides

摘要

Selective s-triazine herbicides for combatting grasses and dicotyledonous weeds in agricultural cultures (esp. cultures of cotton, tomatoes, potatoes, beet, cabbage, squashes or sorghum) contain as active substance cpds. of formula (I): (where R is 1-5C alkyl; and X is O, R1 is H or 2-4C alkyl and R2 is CH3; or X is O, R1 is H or 1-3C alkyl and R2 is C2H5; or X is S, R1 is H or 1-3C alkyl and R2 is CH3 or C2H5). (I) have short duration toxic effect, good water-solubility at pH >=8, high selectivity and possibility of post-emergence use in cotton cultures.